man/man1m/in.chargend.1m

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 in.chargend 1M "23 Aug 2004" "SunOS 5.11" "System Administration Commands"
 NAME
in.chargend - UDP or TCP character generator service daemon
 SYNOPSIS

in.chargend


FMRI svc:/internet/chargen:default


 DESCRIPTION

FMRI stands for Fault Management Resource Identifier. It is used to identify
resources managed by the Fault Manager. See fmd(1M) and smf(5).

The in.chargend service provides the server-side of the
character-generator protocol. This protocol is used for debugging and bandwidth
measurement and is available on both TCP and UDP transports, through port 19.

The in.chargend service is an inetd(1M) smf(5) delegated service.
The in.chargend detects which transport is requested by examining the
socket it is passed by the inetd daemon.

TCP-based service

Once a connection is established, the in.chargend generates a stream of
data. Any data received is discarded. The server generates data until the
client program terminates the connection. Note that the data flow is limited by
TCP flow control mechanisms.


UDP-based service

The in.chargend listens for UDP datagrams. When a datagram is received,
the server generates a UDP datagram in response containing a random number of
ASCII characters (ranging from 0 to 512 characters). Any received data is
ignored.


The in.chargend data consists of a pattern of 72 character lines
containing the printable, 7-bit ASCII characters. Each line is terminated with
a carriage return and a line feed character.
 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:


ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityEvolving


 SEE ALSO

inetd(1M), attributes(5), smf(5)

RFC 864